Results 31 to 40 of about 2,491 (213)

Desenvolvimento sustentável da cadeia produtiva do biodiesel: obtenção de biomassa microalgal em cultivo mixotrófico com glicerina residual

open access: yesVetor, 2013
Um aspecto importante na obtenção do biodiesel de forma sustentável é o destino a ser dado à glicerina obtida no processo, como por exemplo a sua bioconversão em biomassa e biomoléculas de interesse comercial.
Daniela Nogueira   +2 more
doaj   +4 more sources

Evaluation of different types of phytoplankton on rearing of vannamei shrimp larva (Litopenaues vanamei)

open access: yesActa Aquatica, 2022
This study aims to determine the effect of giving different types of phytoplankton on the survival, abundance of bacteria, and water quality of white shrimp (Litopenaeus vannamei).
Ratnawati Ratnawati   +2 more
doaj   +1 more source

Diatomáceas indicadoras de paleoambientes do Quaternário de Dois Irmãos, Recife, PE, Brasil Diatoms as indicators of paleoenvironments during the Quaternary at Dois Irmãos, Recife, Pernambuco State, Brazil

open access: yesActa Botânica Brasílica, 2007
O trabalho apresenta o levantamento da diatomoflórula identificada em sedimentos do Quaternário da Lagoa das Diatomáceas (Dois Irmãos, Recife), baseado em um testemunho de sondagem com 4,5 m, tendo sido analisadas amostras com intervalos de 10 em 10 cm ...
Giane Soares de Souza   +3 more
doaj   +1 more source

Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum

open access: yes, 2012
We investigated the effects of ethyl 2-methyl acetoacetate (EMA) on growth of the marine diatom algae Phaeodactylum tricornutum (P. tricornutum) and Skeletonema costatum (S. costatum). Growth of P.
Yang, Cui Yun   +4 more
core   +1 more source

Intercellular and extracellular amino acids of different bloom species in the Mediterranean Sea

open access: yesOceanological and Hydrobiological Studies, 2022
The presented laboratory experiment was designed to characterize the quantity and compositional variation of algal extracellular amino acids (AAs) that may represent an alternative nutrient source in a natural environment.
Hosny Shimaa   +2 more
doaj   +1 more source

Oxidative stress responses in two marine diatoms during acute n-butyl acrylate exposure and the toxicological evaluation with the IBRv2 index

open access: yesEcotoxicology and Environmental Safety, 2022
n-Butyl acrylate (nBA), a typical hazardous and noxious substance (HNS), is the largest-volume acrylate ester used to produce various types of polymers. With the increasing volume of nBA subject to maritime transportation, its accidental leakage poses a ...
Shuhao Du   +5 more
doaj   +1 more source

Sexual Reproduction of Centric Diatom Skeletonema costatum

open access: yesNIPPON SUISAN GAKKAISHI, 1967
The sexual reproduction and auxospore formation of Centrales had been misinterpreted for a long time. It was believed until recently that auxospore formation had no connection with sexual reproduction. More recently, however, STOSCH2) demonstrated oogamy clearly in Melosira varians for the first time, and since then STOSCH4-8) and GEITLER9, 10) studied
openaire   +2 more sources

Effect of Salinity Differences on Phytoplankton Density (Skeletonema costatum)

open access: yesEdunity Kajian Ilmu Sosial dan Pendidikan, 2023
This study aims to determine the effect of differences in salinity on the density of phytoplankton (Skeletonema costatum). The method in this study used a completely randomized design with 4 treatments and 3 replications. The parameters tested included the density rate of Skeletonema costatum. Data analysis uses One Way Anova to see the significance of
Darmawan Sudarman   +4 more
openaire   +1 more source

Warming enhances protozooplankton top‐down control and nutrient competition

open access: yesLimnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Protozooplankton regulate microbial food webs through top‐down control and nutrient cycling, yet their grazing impacts under ocean warming, particularly in subsurface chlorophyll maximum (SCM) layers, remain poorly understood. This study investigated spatial and seasonal variability in protozooplankton grazing in the northern East China Sea ...
Eunbi Lee   +3 more
wiley   +1 more source

Diatomáceas fitoplanctônicas de dois diferentes ambientes costeiros da Ilha de Santa Catarina, SC, Brasil [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-graduação em Biologia Vegetal, Florianópolis, 2009As diatomáceas são citadas como sendo o grupo dominante na costa brasileira.
Talgatti, Dávia Marciana
core  

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